U.S. Rep. Tony Gonzales announced on Monday he would resign from Congress, avoiding an expected vote on his expulsion after he admitted to having an affair with a staffer. Gonzales, a Republican from San Antonio, has faced intensifying scrutiny in recent months after the San Antonio Express-News first revealed evidence that he engaged in a sexual relationship with a staffer who later died by suicide, prompting a House Ethics Committee review and calls from colleagues for him to step down. Pressure further mounted when another aide came forward, saying Gonzales pressed her for nude photos and sex during his first...